Cement-burning apparatus.



H. S. SPAKMAN. y

CEMENT BURNING APPARATUS.

APPLICATION FILED HAE. 13, 1908.

'Patented May 4, M30".

3 SHEETS-SHEET 1.

fh. L.: l

1i'. S. SPACKMAN.

CEMENT BURNING APPABATUS- APPLIOATION FILED MAB.. 13, 1908. d

Patented May 4L, i999.

3 SHSETSAHBET z.

H. S. SPKMNQ CEMENT3 BURNING APPARATUS. MPLIOA'MON FILED 1111.11.13, 1908.

- Palled May 4, 1909.

a SHEETS-SHEET a.

HENRY S. SPACKMAN, F ARDMORE PENNSYLVNA.

CEMENT-nonnina APPARATUS.

To all whom/it may concern:

Be it known' that I, HENRY' S. SPAoxMA'N,

' a citizen of the United States, and a resident,

oi Ardmore, in the county of Montgomery and' State of Pennsylvania, have made a cer-y tain new anduseul invention Relating` to Cement-Burning Apparatus of which the following is a speciiicetio'n, taken in connection Portland cement clinker.

,substantial to supply' highl with the accompanying draiivings,A forming part of the sarne'.

This invention `relates to cement burning apparatus and relates especiiilly to apparatus vunits each comprising n rotary kiln enden .air preheatmg'rotry chnker cooler prefer ably airanged below-the kiln, and

y air .tight connections therewit in oi sufficient intensity to properly? burn e in the accompanying drawings showin n'eomewhat diagrammatic manner en` ilzstrativeemoodiment of this inventlon and in which the same reference numeral refers 'to similar parts in the several figuresLFigure l is avertical sectional vieur of one unitof the apparatus. Fig. 2 is an enlar ed vertical section through the 'air chute an coolercon nection. Fig. 3 is a similar enlarged secwhy the fine i8 with the hase .1 9 on which the i CII tional'yiew through the hood and lriln conn ection. Eig 4 is e 'transverse sectioned view showing the hood end; and Fig. 5 isa4 plan view showing a battery comprising three units of. apparatus,

In the illustrative embodiment of this in vention shown in the drawings the rotary kiln l5 may he constructed with a metal shell 6i and suitable refractory lining of the usual character', the lower end of the kiln being preferably provided with an inwardly prooint.

'with t ie metal cased dust chamber 17 joined.

stack 2() of the desired height may he mounted. By forming thc dust'cl'ininher and Huel oi such large size ns indicated, e large proportion of' the dust de posited at this point and by reinforcing; the )rick work lining'of these parte with esubstontial metal casing their injury, hy ges explosions is ohviated.

' Specication of Letters Pat`ent. v v a Application filed I arcn 1 3, 1908. Serial No. 420,978.

swing preheated air for combs tion in said kin and roducers' preferably'l located. adjacent to an substantially in line with said kiln to' 've a. luminous flame therea The upper Aend of thekiln may as i indicated he provided with a reducedneck l l-iavirnlr a substantially air tight connection l patentes Muy 4, 190e.

It is of course, understood that the dust may be removed from these arts from time to time through doors Whic may be located at the points indicated and. elsewhere. This -rotsry clinkerin kiln' 15 may he mounted as through the 65130 that the position of lt e hoodwith respect to the kiln end may be readily adjustmade between these parts by rf idly supposting 'the joint rino 63 on the ki n end'v y,t he reinforcing monili .kiln shell 6i vso as to nieintain the joint rln in proper elinement' (see Fig.' 3), the interna reiniorcingniember also serving as indithis means't c 'hood may be moved forward until the revolving 1 ohle'seat for itsel cated to su port the lining ring` 59'. 'By

'40 secured to the shel of the'kiln and `ened. Ashstantially air tight joint mayfbe ers 60, 62;' secured to the usuel onsuita'b e tires 37,..38-; snported by erotatec slight inolintion at which it is mounted clinlre'r down throng the'kln iiia'regular manner.

Attire lowerend of the kiln'is the hood i4 which may be movebly mounted ori/the cerf riego' 64 whose wheels enga' e suitable t1-ecke' joint 63 makes a suitthe hood lining so es to form a substantially air tight connection at l lacing'on which the hood 'door provifled with asuiteble peep hole may he hinved.v aperture may be formed in the hood face towerd the ascending side oi'. the kiln to accomthis point.' lThe hood may 4be*provided with, -a metallic rim 58 andwith a's'uitehle metallic .o

i inodatc the' burner tube 13. 4 Since the lined l burner tube must .he made loi large size 'tof carryA the large volume or producer gas fuel 1 jecting lining rin Y59 so as to maintain el more` even distri ution of clinker at this l or deilecting surface being preferably p17ovided adjacent' the upper portion ofthe hood tov properly. direct air 4into the kiln. By forming 'such a deiector above the burner 'l tubo the air may he directed under the lining ring 59 so that air enters the vkiln adjacent connectin g with 'the aircliute elow, a suitable -erch 67- ico .. deflection thereof,

end 56 of the burner tube 173 projects into the hood aids in determining the influence of the delector and the direction and 'force of the gaseous currentsenterng the kiln. Under these conditions hesting oy radiation takes place ironithe highly luminous hydrocarbon flame inthe hot zone 'of the kiln so as to prope erly @linker the material which is of course radually heated inthe upper part of the by the ilame and hot products of coni-- bustion,

ated is dischm'g manipulation of the valve A pluralitylof producers l, 2, of the waterseal type, or other desired construction, may be arran ed closely adjacent toend substantially in inewith the kiln so as to have their gas discharge pipes 9, 10, lead into a suitable 'refractory lined gas pipe 7 preferahly herein a strong metal casing `which lirebric or other refractory meterielisused to form e non-condu`cting lining of the desired thickness toeconqmize heet. This gas pipe es in dicated may communicate with' a similarly constructed riser 11 connecting with the humor tube 13 of similar construction. Suit able clean-outond inspection doors, such as 8, 12, 66, may he used in these gas conneetions which, ci course, should he lie-pt as clean and free iromdeposited material possible although by arranging the producers close to the kiln, es imiicated,- the gas generm ed through the burner tube into the kiln without either, material loss of temperature or loss of heating value due to deposition of combustible material there- -from. This arrangement of gas producers also allows any desired number of units to be pleoed close beside one another, as is indi cated in Fig. 5, .the burner tubes being connected if desired hy a large gus main 7l) provided with valves, such csl., on eitlier 'si le of every burner tube, so that the producers of one unit may be used to the desired extent to equalizeor reinforce the gas su `iply oi' mi other unit., The riser .l l may he iormed with a suitable vertical extension below the gas pipe 7, this pocket catching any dust or other deposited material and allowing the reniovel thereof through a suitable door, not shown, without interruption 'oi' the burning opere.w tion. These producers are of course oper ated in e. well known manner, fuel being introduced into the feeding bells 3', 4, by the arms o, 6, as understood in this art.

The hood l is preferably connected with a substantially vertically'srranged aiiichute 21 having a substantially air tight connec- The extent lte which the coperating u ith the l rollers 29, 30 so as to slowly rotate the cooler o the hood and supported by a suitn este freine of any desired construc- This chuteV is preferably lined with y reA lar lining. A suitable door 68 may-he provide-d in the air chute at this poim throu h which en undesirable` material from t e kilnma e discharged and access to the interior o the air chute secured vfor i and other erahly in t cylinder mounted on urioses. Thecooler 241s pref-, e crm of 'a lon inclined rotary suite le tires 27, 28, bearing or' driving and carry the clinker material up on the-i11- teruel shelves 25 ond ribs 26 and allow the. same to dro/liek vi'ith u considerable free fall, if desired. In this Way, the air passing through the cooler and air chute may.' be highlyV heated by Contact with the cliuker and otherwise so that ou entering the kiln it may, if desired, hcve e temperature of l GOGO or 1260o Fahrenheit, which correspond,- ingly increasesthe flume tempereture and thc efficiency of the cliuker burning operation in the kiln. 'This air may be drawn' through the kiln and draft', although it as a blower 32v of any desired construction which forces a large volume of air through the hlest pijos 3l cooler. lf desired, a suitable cooler hood may he used at the lou'lerend of the cooler- ,as indicated so as to' substantially inclose the same While alloviing the cool olinker to fall into the elevator buckets 33 mounted on 110 the rolls 34 to discharge the seine. ln cese the louerend ofthe cooler is not inclosed in this uy the air issuing at a Yressure of a nunilzer of ounces from the end of the blast pipe 31 inside the cooler draws additional T115 air in hy injector action Yand creates un cir current through the cooler,- air chute mid hood into the kiln, niaintaining a positive pressure at these points so as to prevent the entrance of cold air at any openings hou ever, desirable to have u substantially nir tight connection betrv een the cooler `end the oir chute and this may he accomplished as indicated in Fi 2 by holting a suitable flange 45 on the sill curing a collar 47 ou the upper end of the cooler by the reinforcing member 49 and the end flange 48 secured to the shell of the. cooler and tc the collar 47. A. suitehlejoiut ring 46 may be tion cooler by the? stack Uluc u is preferable to force the lair into the cooler hy 'suitable means,such

into the lower end of `the 1t is, 12o

e of the air chute arid se 12S loosely mounted on the col 130" r said gais piiefsnd Clefilnoiits in said rise sub stantiallfin line nith said huruer pipe and l gas pipe. 6. ln, c'eiiient burning apparatus, a plu-,

rality of units arranged side by side each g comprising a rotary kiln, a hood at the loner end 'ot' said kiln, an air nreheating rotar); @linker cooler helony said kiln and air chute connecting cooler with said hood, nie-ans to force air for eonibustion'into the lower end of seid cooler and through said cooler, chute and hood under pressure to enter said kiln in a highly heated condition for oonihustion of the fuel gas therein, a plurality ol' gas lproducers closely adjneent to sind kilnfanfl gas eonneetions substantially in line with seid kiln and' a plurality of zas producers'closely adjacent eeoysfi connections .of each of said kilns a. i provided. with vnLvf-s edjaoent each ooniiecl'ion.

`burning apparatus, a plu- 8. ln cement rollt); of units arranged side by side,each unit coinVrising a rotary kiln, :i hood at the lon er en( ol'gsaid rotary kiln, an air preheatingr rotary cooler helo'v.' said kiln, means to pass air throuffh said cooler and hood to enter said kiln in a highly heated condition,

i to said kiln, Das connections between said the upper end of said;

provided with non eonduoting refractory i v kiln in a highly heated condition to sulpport lining between seid gas producers and said kiln to discharge the producer gas into said kiln nithout undesirable cooling oi' deposii Combustion therein, a gas producer c tion losses and a inein joining the gas g connections of the several kilns and pro. vided with valves adjacent earch niln rono... 7.' In eenient burning ap jaratus, a plurslity of units farranged side y side erich unit produeers and said kiln to feed the pro'- ducer gas into said kiln. ithout undesirable cooling or deposition losses and a gas main ioining the gas connections of each of said kilns and provided ith Valves adjacent each gas connection.

9. In ceineiit burnin rality of units arrange side by side eaoli unit comprising;- a rotar kiln a preheating eooler connected n ith said kiln and means to pass air through said veooler to enter said apparatus, a pluosely adjacent to said kiln, gas connections betr; een said gais producer and said kiln to feed the produeer gas into said kiln eccentrically with respect to said kiln axis and a` transversely arranged ges main joining the gas comprising a rotary kiln, a hood at the 'lower i end. el sii-id rotary kiln, an air pryiheating rotary cooler holen' said kiln, ineens to poss :nr through said cooler sind hood to enter said .kiln in s. highly. heated condition, a

ronneci',ions of each of said kilns and provided with valves adjacent each kiln connection.

HENRY S. SPACKMAN.

lWitnesses HARRY li. DUNCAN, Jnssin B. KAY. 

